Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Mount Vernon, Mount Vernon Airport (KMVN)

Lat: 38.32°NLon: 88.87°WElev: 479ft.

Fair

82°F

28°C

Humidity 74%
Wind Speed S 6 mph
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 23 Jul 9:55 pm CDT
Extended Forecast for

3 Miles SE Sesser IL

Excessive Heat Warning until July 24, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 24, 08:00pm

    NOW until
    8:00pm Sun

    Excessive Heat Warning

  • Tonight

    Tonight: Mostly clear, with a low around 74. Light southeast wind.

    Mostly Clear

    Low: 74 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming south 5 to 7 mph in the morning.

    Sunny then
    Slight Chance
    T-storms

    High: 93 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 75. South wind around 5 mph becoming calm  in the evening.

    Slight Chance
    T-storms

    Low: 75 °F

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 89. Light and variable wind becoming west southwest around 5 mph in the morning.

    Chance
    T-storms

    High: 89 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. Light northeast wind.

    Chance
    T-storms

    Low: 73 °F

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 88. East wind 3 to 5 mph.

    Chance
    T-storms

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Light southeast wind.

    Chance
    T-storms

    Low: 72 °F

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Partly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.

    Chance
    T-storms

    High: 88 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Light southeast wind.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Light and variable wind becoming west southwest around 5 mph in the morning.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light northeast wind.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. East wind 3 to 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Light southeast wind.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southeast wind 3 to 5 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 3 to 6 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southeast wind 3 to 5 mph.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. West southwest wind 5 to 7 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West southwest wind 3 to 6 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. West wind 5 to 7 mph.
Click Map For Forecast
Point Forecast:
3 Miles SE Sesser IL
 38.07°N 89.01°W
9:14 pm CDT Jul 23, 2016
10pm CDT Jul 23, 2016-6pm CDT Jul 30, 2016
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database